Update app.py

app.py

@@ -36,7 +36,7 @@ def get_current_time_in_timezone(timezone: str) -> str:
 
 # Dummy function
 @tool
-def get_weather(location) -> str:
+def get_weather(location: str) -> str:
     """A tool that gets the weather for a given city
     Args:
         location: A string representing a city